1.08x Flattener

These images are nothing fancy at all. But I thought they somehow describe the performance. One minute unguided with 5D Mark II. Each image are degraded the quality. But the number of pixels remain unchanged.

125SD

71FL

Illumination curves are around 80% at 40mm circle with 125SD/71FL and around 90% 77ED/101ED. Looks like slower F-number tend to become a bit brighter at the edge.